Stochastic allocation strategy for irregular arrays based on geometric feature control
Irregularities in microphone distribution enrich the diversity of spatial differences to decorrelate interferences from the beamforming target. However, the large degrees of freedom of irregular placements make it difficult to analyse and optimize array performance. This article proposes fast and fe...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-05-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147720921775 |
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| _version_ | 1849764900373528576 |
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| author | Jingjing Yu Qi Xi Runlei Li Hui Tian Yaxi Xie |
| author_facet | Jingjing Yu Qi Xi Runlei Li Hui Tian Yaxi Xie |
| author_sort | Jingjing Yu |
| collection | DOAJ |
| description | Irregularities in microphone distribution enrich the diversity of spatial differences to decorrelate interferences from the beamforming target. However, the large degrees of freedom of irregular placements make it difficult to analyse and optimize array performance. This article proposes fast and feasible optimal irregular array design methods with improved beamforming performance for human speech. Important geometric features are extracted to be used as the input vector of the neural network structure to determine the optimal irregular arrangements of sensors. In addition, a hyperbola design method is proposed to directly cluster microphones in the hyperbola areas to produce rich differential distance entropies and yield significant signal-to-noise ratio improvements. These methods can be easily applied to guide non-computer-aided optimal irregular array designs for human speech in acoustic scenes such as immersive cocktail party environments. |
| format | Article |
| id | doaj-art-b9c0c5319feb40dcb7921dbbc708d81e |
| institution | DOAJ |
| issn | 1550-1477 |
| language | English |
| publishDate | 2020-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-b9c0c5319feb40dcb7921dbbc708d81e2025-08-20T03:05:01ZengWileyInternational Journal of Distributed Sensor Networks1550-14772020-05-011610.1177/1550147720921775Stochastic allocation strategy for irregular arrays based on geometric feature controlJingjing Yu0Qi Xi1Runlei Li2Hui Tian3Yaxi Xie4School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Information and Communication Technology, Griffith University, Gold Coast, QLD, AustraliaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaIrregularities in microphone distribution enrich the diversity of spatial differences to decorrelate interferences from the beamforming target. However, the large degrees of freedom of irregular placements make it difficult to analyse and optimize array performance. This article proposes fast and feasible optimal irregular array design methods with improved beamforming performance for human speech. Important geometric features are extracted to be used as the input vector of the neural network structure to determine the optimal irregular arrangements of sensors. In addition, a hyperbola design method is proposed to directly cluster microphones in the hyperbola areas to produce rich differential distance entropies and yield significant signal-to-noise ratio improvements. These methods can be easily applied to guide non-computer-aided optimal irregular array designs for human speech in acoustic scenes such as immersive cocktail party environments.https://doi.org/10.1177/1550147720921775 |
| spellingShingle | Jingjing Yu Qi Xi Runlei Li Hui Tian Yaxi Xie Stochastic allocation strategy for irregular arrays based on geometric feature control International Journal of Distributed Sensor Networks |
| title | Stochastic allocation strategy for irregular arrays based on geometric feature control |
| title_full | Stochastic allocation strategy for irregular arrays based on geometric feature control |
| title_fullStr | Stochastic allocation strategy for irregular arrays based on geometric feature control |
| title_full_unstemmed | Stochastic allocation strategy for irregular arrays based on geometric feature control |
| title_short | Stochastic allocation strategy for irregular arrays based on geometric feature control |
| title_sort | stochastic allocation strategy for irregular arrays based on geometric feature control |
| url | https://doi.org/10.1177/1550147720921775 |
| work_keys_str_mv | AT jingjingyu stochasticallocationstrategyforirregulararraysbasedongeometricfeaturecontrol AT qixi stochasticallocationstrategyforirregulararraysbasedongeometricfeaturecontrol AT runleili stochasticallocationstrategyforirregulararraysbasedongeometricfeaturecontrol AT huitian stochasticallocationstrategyforirregulararraysbasedongeometricfeaturecontrol AT yaxixie stochasticallocationstrategyforirregulararraysbasedongeometricfeaturecontrol |